本标准是信息系统软件接口的独立实施规范，包含与硬件、软件或其任何组合组成的复杂系统的诊断和维护相关的数据。这些接口支持创建应用程序编程接口（API）的服务定义，用于访问、交换和分析历史诊断和维护信息

This standard is an implementation-independent specification for a software interface to information systems containing data pertinent to the diagnosis and maintenance of complex systems consisting of hardware, software, or any combination thereof. These interfaces support service definitions for creating application programming interfaces (API) for the access, exchange, and analysis of historical diagnostic and maintenance information